Sole fitting machine



Feb. 1, 1938. F. E. BERTRAND SOLE FITTING MACHINE Filed Oct. 29, 1935 Patented Feb. 1, 1938 UNITED STATES PATENT OFFICE SOLE FITTING MACHINE Frederic E. Bertrand, Lynn, Mass, assignor to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application October 29, 1935, Serial No. 47,285

7 Claims. (01. 12-27) This invention relates to sole fitting machines axis of the clamp g screw and show the and is herein disclosed as embodied in an imclamping screw loosened for adjustment of the proved device for securing a channel knife block knife block; in a channeling machine. Fig. 3 is a view similar to Fig. 2 showing the It is usual in channeling machines to secure the clamping screw tightened for full clamping pres- 5 channel knife block in a position of vertical adsure; justment by means of a clamping screw. The Fig. 4 is a cross-sectional view of the hollow knife block is slidably mounted for such adjustshank of the device for turning the clamping ment upon its support and an adjusting screw is screw; and 1 provided for effecting the adjustment. When Fig. 5 is a cross-sectional view of the head of 10 the knife block is to be adjusted the clamping the clamping screw. screw is loosened and after the adjustment has In the illustrated device achannel knife carrier been made the clamping screw is again tightened. block 10 is secured with provision for vertical ad- For an example of a device of this character refjustment to a support l2 which may constitute theerence may be had to United States Letters Patent usual knife block carrier slide of a channeling ma- 15 No. 1,030,703, granted June 25, 1912 upon my apchine. For a concrete example of such; a support plication, disclosing an arrangement whereby a reference may be had to the member designated knife block is clamped to its support by a screw I8 by the reference numeral H8 in United States Which exerts clamping pressure through a horse- Letters Patent No. 2,015,064, granted September 00 shoe-shaped washer 22. The shape of the washer 24, 1935 upon my application. The block Ill is 22 enables it to be withdrawn laterally, whereprovided with flanges M which slidably embrace upon the knife block may be readily removed for the sides of the support l2 to enable the block to sharpening of the knife. be adjusted vertically. Such adjustment is effect- It is an object of the present invention to pro-- ed. by a screw l6 threaded into the block l0 and vide an improved device of the character under having a head which is retained against vertical 25 consideration. In accordance with a feature of movement by engagement with a notch l8 formed the invention there is provided a clamping screw in the support 12. To prevent undesired turning threaded into one of the parts to be clamped and of the screw 16 a set screw 20 is provided. passing through an opening in the other part, and Slidably mounted for adjustment in a horia. member bridging the opening to transmit zontal guideway formed in the block I2 is achan- 3n clamping force from the screw, the bridging memnel knife 22 which is clamped in its adjusted posiber serving in addition as a Wrench for turning tion by a pair of screws one of which is shown at the screw. The bridging member thus combines 24 in Fig. l. the functions of wrench and washer, and it is The block i0 isclamped in its adjusted posislotted for lateral withdrawal to enable the tool tion by a device comprising a clamping screw 26 35 carrier to be removed over the head of the clampthreaded into the support l2. The screw 26 passes ing screw without removing the clamping screw. loosely through a vertical slot 28 formed in the In the illustrated construction, a spring is interblock In. A portion of the shank of the clamping posed between the head of the screw and the screw is squared off to provide fiat faces 30 which bridging member. When the clamping pressure enter into non-rotary engagement Withamember 40 is released for adjustment of the carrier block which performs the functions of a wrench and this spring holds the carrier block with relatively also of a washer. This member in the illustrated light pressure against the support to keep the machine has a disk-shaped end portion 32 which carrier block from falling from the support. is connected by a hollow shank 34 toa knurled The invention further resides in features of conhead or knob 36. The end 32 has formed in it a 45 struction and combinations and arrangements of wrench-like slot 38 for non-rotary engagement parts hereinafter described and claimed, the ad with the faces 30. The slot 38 extends radially to vantages of which will be apparent to those skilled the periphery of the disk to enable the member to in the art from the following description. be applied to and withdrawn from the screw by The invention will be described with reference lateral movement. The peripheral opening of the 50 to the accompanying drawing, in which slot 38 is beveled to facilitate the entrance of the Fig. 1 is a perspective view of a portion of a shank of the screw, the beveled surfaces being inchanneling machine embodying the improved dedicated by the reference character 40. Upon the vice; outer end of the screw 26 is a head 42 having a 5 Fig. 2is a sectional plan view taken through the lower portion 43 of reduced diameter. The reduction of diameter in the head 42 providesan annular shoulder 44. While the head 42 and the shank of the screw 26 should be separate pieces for purposes of construction, they are rigidly secured in any suitable way and may conveniently be regarded as integral. The portion of the shank of the screw 26 between the reduced portion 43 of the head and the squared portion 30 of the shank is cylindrical, and slidably mounted upon this cylindrical portion is a collar 46 having an extension 41 of reduced diameter. The reduction of the diameter of the collar 46 provides an annular shoulder 48. Interposed between the shoulders 44 and 48 and surrounding the shank of the screw 26 is a coiled compression spring 50 which tends to urge the collar 46 into abutting engagement with the shoulder resulting from the junction of the squared-off portion of the shank'with the cylindrical portion above mentioned.

The shank 34 of the turning device above mentioned is of sufficient length to enable the head 36 to clear the end of the screw 2'6 when the slot 38 engages the faces 30. The device is applied laterally, as indicated by the arrows in Fig. 1, and the wall of the hollow shank 34 has a lateral opening 52 corresponding in position to the slot 38 but considerably wider than the slot 38 to accommodate the outer end of the screw including the head 42, spring 44 and collar 46 when the device is being applied and withdrawn. The diameter of the central bore of the shank 34 is only slightly greater (to provide clearance) than the diameters of the head 42 and the collar 46. The central bore of the shank 34 extends further down toward the end 32 than does the lateral opening 52 to provide a seat for the collar 46. While the opening 52 is wide enough to admit the head 42 and the collar 46, the slot 38 is of considerably less width than the diameters of these members. When, therefore, the collar 46 is seated in the bottom of the bore of the shank 34 it cannot be withdrawn laterally and the turning device is maintained in axial alinement with the screw 26.

To replace the block I0 after the knife 22 has been sharpened the block is placed in a position indicated in the drawing and the turning device is applied laterally to bring the slot 38 into wrench-like engagement with the faces 30. The knob 36 is then turned to tighten the screw 26 until the end shoulders of the reduced extensions 43 and 41 come into engagement, as shown in Fig. 3, to transmit positively the clamping force of the screw through the disk 32 against the block l0. When the block [0 is to be adjusted vertically upon the support I2 the knob 36 is turned to loosen the screw 2'6 until the reduced extension 43 of the head no longer abuts the reduced extension 41 of the collar, as shown in Fig. 2. The spring 50 will then hold the block 10 against the support l2 with a pressure which is considerably less than full clamping pressure but which is suificient to keep the block H] in engagement with the support I2 while the adjustment is effected.

It will be noted that when the screw 26 is turned to full clamping position, as shown in Fig. 3, or to the position shown in Fig. 2, the pressure of the spring 50 holds the collar 46 seated Within the bottom of the bore of the shank 34, and the turning device cannot be withdrawn. To remove the turning device, the screw 26 must be turned until the shoulders of the squared off faces 30 engage the collar 46 and carry the collar 46 far enough up the bore of the shank 34 to enable the collar to emerge through the opening 52. The turning device and then the channel knife block can thereafter readily be removed while leaving the clamping screw in position, the slot 28 being wide enough to pass over the collar 46 and the head 42. After the knife block has been replaced, the operator, in applying the turning member, may give the turning member a slight outward pull to cause the collar 46 toseat within the bottom of the bore. After a few turns of the knob 36, the screw 26 will have advanced far enough to bring the collar 46 below the opening 52. The turning device will then be maintained in axial alinement with the screw and will be held against lateral withdrawal.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a sole fitting machine, a support, a tool carrier slidably mounted for adjustment on said support, a clamping screw threaded into one of said parts and extending through an opening in the other part, and a member bridging the opening through which said screw passes to transmit force from the screw to one of the parts to clamp that part against the other part, said member and said screw being constructed and arranged for non-rotary engagement to enable said member to serve as a wrench for turning said screw.

2. In a sole fitting machine, a support, a tool carrier slidably mounted for adjustment'on said support, a clamping screw threaded into said support and passing through a slot in said carrier, and a member embracing said screw for nonrotary engagement therewith and bridging said opening to transmit force from the screw to clamp said carrier against said support, said member serving as a wrench for turning said screw and being constructed and arranged for lateral withdrawal from said screw to release said carrier.

3. In a sole fitting machine, a support, a tool carrier slidably mounted for adjustment on said support, a clamping screw threaded into said support and passing through an opening in said carrier, a member bridging said opening and embracing said screw for transmitting force from said screw to press said carrier against said support, and a coil spring surrounding said screw and interposed between the head of said screw and said member thereby yieldingly transmitting force from said screw to said member, said member being constructed and arranged for lateral withdrawal from said screw to release said carrier.

4. A clamping device comprising a screw having a shank threaded at one end for engagement with one of the articles to be clamped and having a shoulder adjacent to its other end, a portion of said shank having flat bearing surfaces, a member having non-rotary engagement with said bearing surfaces, said member being slotted for lateral withdrawal from said shank and having a portion constructed and arranged to facilitate the application of turning forces for tightening or loosening said screw, and resilient means interposed between said shoulder and said member for exerting pressure through said member to urge the other article which is to be clamped against the firstmentioned article.

5. In a sole fitting machine, a support, a tool carrier slidably mounted for adjustment on said support, a clamping screw threaded into said support, said clamping screw having a head and a shank and said tool carrier having a slot through which said clamping screw passes, a

member adapted to bridge said slot and to enter into non-rotary engagement with the shank of said screw for turning said screw, the portion of the shank engaged by said turning member being square, a collar slidably mounted on said shank between the head of said screw and said square portion of the shank, and a coil spring surrounding said shank and interposed between said head and said slidable collar, said spring operating to hold said tool carrier yieldingly in engagement with said support when said clamping screw has been loosened for adjustment of said tool carrier, the head of said screw being constructed and arranged to engage said slidable collar and to exert positive pressure through said collar and said turning member to clamp said tool carrier against said support upon tightening of said clamping screw.

6. A clamping device by which the tool carrier of a sole fitting machine may be secured to a supporting member of the machine, comprising a clamping screw passing through a slot in the tool carrier and being threaded for engagement with the supporting member, said clamping screw having a head and a squared shank, a member adapted to bridge said slot and to enter into nonro-tary engagement with the squared shank of said screw for turning said screw, and means interposed between the head of said screw and said turning member for transmitting a clamp ing pressure through said turning member against said tool carrier, said turning member being constructed and arranged for ready withdrawal from said clamping screw to enable said tool carrier to be removed from said support without interference from said screw.

'7. In a sole fitting machine, a support, a tool carrier slidable for adjustment on said support, a clamping screw threaded into said support and passing loosely through a slot in said tool carrier, said clamping screw having flat faces formed on its shank, a member bridging the slot in said tool carrier and having non-rotary engagement with the fiat faces of said screw for turning the screw, said turning member being constructed and arranged for lateral withdrawal from said screw to enable the tool carrier to be removed from the support, and resilient means for transmitting force from said screw to said turning member to press said tool carrier against said support.

FREDERIC E. BERTRAND. 

